Satisfaction Guaranteed volume 6 features story and art by Ryo Saenagi.

It's back to the amusement park for Shima and his supermodel pal Kaori. They've been invited to test out a new attraction: a mystery-maze game. Shima, Kaori, Mai, and APP are a team, but along with them is a snooping reporter who wants to get the goods on Kaori. When Kaori collapses during the game, APP learns the truth about Kaori's alter ego, Kyo. What could that truth be?